260926381 has 2 divisors, whose sum is σ = 260926382. Its totient is φ = 260926380.

The previous prime is 260926333. The next prime is 260926397. The reversal of 260926381 is 183629062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166642281 + 94284100 = 12909^2 + 9710^2 .

It is a cyclic number.

It is not a de Polignac number, because 260926381 - 2¹⁷ = 260795309 is a prime.

It is a super-2 number, since 2×260926381² = 136165152603514322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 260926381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260926181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130463190 + 130463191.

It is an arithmetic number, because the mean of its divisors is an integer number (130463191).

Almost surely, 2^260926381 is an apocalyptic number.

It is an amenable number.

260926381 is a deficient number, since it is larger than the sum of its proper divisors (1).

260926381 is an equidigital number, since it uses as much as digits as its factorization.

260926381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 260926381 is about 16153.2158098628. The cubic root of 260926381 is about 639.0075609552.

The spelling of 260926381 in words is "two hundred sixty million, nine hundred twenty-six thousand, three hundred eighty-one".